Signor to george westing house



(No Model.)

W. STANLEY, Jr.

INDUCTION COIL.

I No. 349,612. Patented Sept. 21, 1886.

@lilllllmllllllllllltllllly q vwmocvw William Stanza J; 25 55 filti'omwgUNITED STATES PATENT OEEicE.

\VI LLIAM S' ANLEY, JR, OF GREAT BARRIN tTON, MASSAUUUSE FS, AS- SHQTUTI- TO GEORGE XVESTINGHOUSE, JR, OF :II'PFSPJ RG, QPA.

INDUCTION-COIL.

SPECIFICATION forming part of Letters Patent No 349,612, dated September21, 1.886.

.-'\pplie:\tion tiled November 23, 1385. Serial No. 183,723. (No model.)

To (all whom it May concern: leaving openings upon the interior and ex-Beit known that LXVILLIAM STANLEY, J12, terior of the ring between theteeth. and in aeitizen ol't'he United States, residinginGreat theseopenings the conductors are wound. .Barrington, in the county ofBerkshire and The primary and secondary may be. wound StateotMassachusetts, have invented certain together-that is to say, parallelwith each new and useful Improvements in il'nductionotheror the one maybe wound. outside the oils, otfwhielithe lbllowing isa specification.other; or they may be placed in. alternate My invention relates to theconstruction of spaces between the teeth; or they may bealiilduetioir'coils or imluctoriuins. teruately superposed in thealternate spaees-- IO The objcet ol' the invention to provide an that isto say, the primary may be inside the induction-coil adapted to eonvertcurrents of secondary in one opening and outside the a givenelectro-motive force into currents of secondary in the next opening.

a different clectro-lnotive force, or having a In the aeeompanyingdrawings, Figure 1 is difi'erent potential, with as small a loss ot' aplan view, parilyin section, of an induction- 1 energy as possible. coilembodying the features of the invention,

The invent-ion is designed especially for emand Fig. 2 is a sideelevation of the same. ploynient in electriclighting systems, orin Fig.3 is a plan view of an inelosing case, and systenlswhere translatingdevices olany char- Fig. 4 is a side elevation of the latter. acter areemployed in the seeondary circuits Referring to the figures, AAE A, do,rep- '20 of inductioneoils. resent a series of thin. plates or lamina:ofsoi't The invention consists in organizing an in iron placed side byside and separated by in duct-iou-coil, or, as it may be termed, aconsulating material, as indicated at I) I) I), &c. vertcr, insubstantially the following inan- The plates are each constructed with aseries ner: A number of thin. iron. rings or annular ofinwardlynojecting pointed teeth or lugs, plates are formed, preferablyby stamping, a a. A series of out ward projections, a a", and these haveinterior and exterior teeth are formed opposite the inner projections oraround their peripheries. The internal teeth teeth a, and the lines ofthe outer teeth i'all taper to points, their lengths being equal to thein the eontinuations of the outside lines of the thickness to which itis designed they shall inner teeth, so that the outer teeth widen to- 6be wound with the insulating-conductors conward their ends in the sameproportion as the s stituting the primary and secondary coils. innerteeth converge. Beet-angular openings The external teeth extend outwardan equal 0' e and e" c" are thus lei't upon the inner and distance, butinstead of tapering they diverge, upon the outer edges or sides. Thelines leaving openings having parallel sides. The bounding the openingsthus t'ormed are par number of these plates depends upon the conallelwith each other. A number of the plates ditions under which theconverter is to be en1- are fastened together by bolts 8, extendingployed. They are placed upon each other, the through correspondingholes, r, in the plates, positions of the teeth coinciding; but they arethe positions of the teeth of the several plates insulated or separatedfrom each other by pa and lalniiue coinciding with each other. and 0per, cloth, asbestus, oil-silk, air, or other wellpreferably the boltsare insulated from the knowninsula'ting material, and they are firmlyplates themselves. It is designed that the bolted or otherwise securedtogether. The primary and secondary coils D and 12 shall be number ofplates which are thus assembled is, wound i n these penings,an.d theyinay be either as already stated, dependent upon the purwound together, theprimary wire 1) and the 5 pose to whichtheinduction-coilistobeadaptsecondary (1 being placed side by side and ed. For instance, ititis designed thatit shall wound parallel, as shown in Figs. 1 and 2; orabsorb live hundred XVatits energy, a certain the primarywire andsecondary wires maybe number of plates are used; if one thousandvariously disposed with ret'ereneetoezu'h other. \Vatts, twice thatnumber. The plates are so The coil is preferably protected by being 50placed that two positions of the teeth coincide, placed within asuitable case consisting of a base, F, to which there is secured aremovable cover, F. In the cover there are preferably formedperforations f f. For convenience in fastening the coil in position thebase F is provided with holes f, by means of which it may be screwed orbolted to any suitable support. a

I claim as my invention- 1. An induction-coil consisting of thecombination of a series of thin sheet-iron rings placed side by side,and having inwardly and outwardly projecting teeth, and primary andsecondary coils wound thereupon at right angles,to the direction of thelaminse of the plates.

2. An induction-coil consisting of a series of thin iron plates, havingteeth upon its inner and outer peripheries and two conductors woundbetween the teeth.

3. The combination, substantially as here- 2o wound in'the spacesbetween the teeth, substant-ially as described.

In testimony whereof I have hereunto subscribed my name this 17th day ofNovember, 30

WILLIAM STANLEY, J R.

\Vitnesses: v

DANL. W. EDGECOMB, CHARLES A. TERRY.

